Ah yes, I see. This is the same issue as the one described in Topo with DC-2d-inversion-app - #5 by thibaut.astic
Short explanation: there is a typo in the Pseudosections plotting function. It is being fixed soon. This bug does not affect at all the inversion (just the plotting of the pseudo-section).
Dis you install SimPEG via pip or conda, or are you working from a github clone? If the latter, you could switch to the dcip_update_utils
branch while we update the main
branch and the pip
and conda
install.